HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Andre Gregory Atoian, MD with clinicians in the same registry specialty: Anesthesiology.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 337 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ernest Shmidt, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for nerve block and injection procedure, prone position (01992)
  • Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01940)
  • Ultrasonic guidance for needle placement (76942)
76%Service-mix similarityView profile →

Kenneth Young Son, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Ultrasonic guidance for needle placement (76942)
46%Service-mix similarityView profile →

Christina Marie Menor, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for nerve block and injection procedure, prone position (01992)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
40%Service-mix similarityView profile →

Shawna Dorman, MD

Anesthesiology · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
36%Service-mix similarityView profile →

Thang Q Le, MD

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for nerve block and injection procedure, prone position (01992)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
35%Service-mix similarityView profile →

Daniel Abraham, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01940)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Ultrasonic guidance for needle placement (76942)
32%Service-mix similarityView profile →

Song Yi Han, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for nerve block and injection procedure, prone position (01992)
30%Service-mix similarityView profile →

Edwin Maun Matias, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Ultrasonic guidance for needle placement (76942)
28%Service-mix similarityView profile →

Ned Takao Sasaki, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
27%Service-mix similarityView profile →

Kalyani Karandikar, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
26%Service-mix similarityView profile →

Jane Nguyen Truong, MD

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Ultrasonic guidance for needle placement (76942)
25%Service-mix similarityView profile →

Gian P Nhan, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for nerve block and injection procedure, prone position (01992)
  • Ultrasonic guidance for needle placement (76942)
25%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.